747087280 has 40 divisors (see below), whose sum is σ = 1738317312. Its totient is φ = 298604544.

The previous prime is 747087251. The next prime is 747087301. The reversal of 747087280 is 82780747.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133009 + ... + 138511.

Almost surely, 2^747087280 is an apocalyptic number.

It is an amenable number.

747087280 is an abundant number, since it is smaller than the sum of its proper divisors (991230032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

747087280 is a wasteful number, since it uses less digits than its factorization.

747087280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7213 (or 7207 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 43.

The square root of 747087280 is about 27332.8973948976. The cubic root of 747087280 is about 907.3826008560.

The spelling of 747087280 in words is "seven hundred forty-seven million, eighty-seven thousand, two hundred eighty".